Backup restore failed, can anyone help out with preconfigured shaders/overlays for consoles

[Norstein]

I know this might be asking much, but I'm looking for an image with console emulators installed and, important, shaders and overlays configured.
I am NOT asking for ROMs, or any other illegal or gray stuff, but sadly my 400GB micro-sd card backup is faulty, and now the image I had worked on for more than a year is just gone.

I had modified nismo's oldroom theme and added overlays to CRT and LCD console systems, so especially the Gameboy systems finally looked like they're supposed to, with overlays, shaders and everything, and now this.

I apologize if this comes of as lazy but I wanted to fire up my Pi 4B+ on Christmas to play some Gameboy Color with my wife and her brother, and the damn SD card was corrupted, restoring a backup to a new sd card only brought different error messages, so I guess I'll have to start over from scratch, but at the moment I'm just too devastated over the loss of what I worked so long and hard to build.

I looked up some premade images, on Google and Youtube, but they all seem to come with games (illegal), and none of them showcase if they even have their CRT shaders and handheld overlays configured yet.

Anyway, help would be greatly appreciated.

[mitu]

Try to use 7Zip to open the backup .img and copy your files from it.